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Improved performance of cascaded multilevel inverter

Authors: Asharaf Ali; Jayaram Nakka;

Improved performance of cascaded multilevel inverter

Abstract

Cascaded H-Bridge (CHB) Multi-Level Inverter (MLI) is widely known for their better performance. This topology is very widely used in renewable applications due to its advantage in the availability of isolated DC links. However, in MLIs the main constraint lies in the usage of switches, so as to avoid the switching losses. But, for the increase of CHBMLI to a next higher level of CHBMLI, the number of switches is mandatorily increased. Hence, remaining the cascaded number to the same value and by the addition of very limited hardware to the existing CHB topology the level of the CHBMLI can be tripled (perspective topology named as "Cascaded Diode Bridge integrated H-Bridge (CDBHB) MLI"). In the amended CHBMLI topology the switching devices are slightly increased. But, still the level of the MLI obtained is doubled for the same number of switching devices. The comparative performance evaluation was performed using extensive simulations in MATLAB Simulink.

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Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
6
Top 10%
Top 10%
Average
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